Fertilization: A Comparative Ultrastructural Review

In vitro fertilization in cattle: a review.

In vitro maturation and fertilization of cattle oocytes and subsequent in vitro culture of zygotes and embryos is discussed in the context of recent encouraging data. Mass production of embryos produced in this way in the future will have a great impact on animal production and animal breeding plans, for example the so-called MO-ET (multiple ovulation and embryo transfer) plan which aims at est...

Foliar Iron Fertilization – A Critical Review

A comparative ultrastructural study of chondrosarcoma, chordoid sarcoma, and chordoma.

A morphologic and electron microscopic study was made of two chordoid sarcomas. These lesions were compared with two classical chondrosarcomas and two chordomas. These chondrosarcoma cells showed many features common to chondrocytes, such as abundant RER, well-developed Golgi complexes, and microvillous cytoplasmatic membranes. The chordoid sarcomas bore a close morphologic resemblance to the c...

A comparative study of parthenogenetic activation and in vitro fertilization of in vitro matured caprine oocytes

The aim of the study was to compare the parthenogenetic activation and in vitro fertilization (IVF) of in vitro matured caprine oocytes. A total of 881 cumulus-oocyte complexes (COC’s) were collected from 243 ovaries. Oocytes were matured in TCM-199 medium containing eCG (20 IU/ml), hCG (20 IUμg/ml), oestradiol-17β (1 μg/ml), BSA embryo tested (3 mg/ml) supplemented with 10% fetal bovine serum ...

A Comparative Review of Global Transportation Energy Outlook

In 2010, the global transport sector consumed about 2,200 million tons of oil equivalent. About 96% of this amount came from oil. It shows that more than 60% of the oil consumed globally goes to the transportation sector. Road transport accounts for the bulk of the transportation energy consumption. The light-duty vehicles (LDVs), including light trucks, light commercial vehicles, and minibuses...